12120049 has 2 divisors, whose sum is σ = 12120050. Its totient is φ = 12120048.

The previous prime is 12120047. The next prime is 12120061. The reversal of 12120049 is 94002121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 93025 = 3468^2 + 305^2 .

It is an emirp because it is prime and its reverse (94002121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120049 - 2¹ = 12120047 is a prime.

Together with 12120047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12120047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060024 + 6060025.

It is an arithmetic number, because the mean of its divisors is an integer number (6060025).

Almost surely, 2^12120049 is an apocalyptic number.

It is an amenable number.

12120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120049 is an equidigital number, since it uses as much as digits as its factorization.

12120049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12120049 is about 3481.3860745399. The cubic root of 12120049 is about 229.7037711243.

The spelling of 12120049 in words is "twelve million, one hundred twenty thousand, forty-nine".